The SFC frequency inverter is designed for variable speed control of the fan to provide optimal operating economy and reduce noise levels.
Depending on the number of work stations in operation the SFC along with the ST-300 pressure sensor varies the fan speed and this allows the correct amount of air for the fan to provide. Alternately manual variable control can be used with the SFC-POT potentiometer. The SFC-VSS is used if a 2 step control is preferred, interference filters are included. The enclosure class is IP21 for built in application, alternately IP55 for dust and water protection.
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